Commit 07248afa authored by Wolfram Sang's avatar Wolfram Sang Committed by Ulf Hansson
Browse files

mmc: renesas_sdhi: remove R-Car H3 ES1.* handling 



R-Car H3 ES1.* was only available to an internal development group and
needed a lot of quirks and workarounds. These become a maintenance
burden now, so our development group decided to remove upstream support
and disable booting for this SoC. Public users only have ES2 onwards.

Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20230307163041.3815-9-wsa+renesas@sang-engineering.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 63264422

drivers/mmc/host/renesas_sdhi_internal_dmac.c

+4 −6
Original line number Diff line number Diff line
@@ -72,11 +72,10 @@ enum renesas_sdhi_dma_cookie { 


static unsigned long global_flags;

/*

 * Workaround for avoiding to use RX DMAC by multiple channels.

 * On R-Car H3 ES1.* and M3-W ES1.0, when multiple SDHI channels use

 * RX DMAC simultaneously, sometimes hundreds of bytes data are not

 * stored into the system memory even if the DMAC interrupt happened.

 * So, this driver then uses one RX DMAC channel only.

 * Workaround for avoiding to use RX DMAC by multiple channels. On R-Car M3-W

 * ES1.0, when multiple SDHI channels use RX DMAC simultaneously, sometimes

 * hundreds of data bytes are not stored into the system memory even if the

 * DMAC interrupt happened. So, this driver then uses one RX DMAC channel only.

 */

#define SDHI_INTERNAL_DMAC_RX_IN_USE	0
@@ -222,7 +221,6 @@ static const struct renesas_sdhi_quirks sdhi_quirks_r9a09g011 = { 
 */

static const struct soc_device_attribute sdhi_quirks_match[]  = {

	{ .soc_id = "r8a774a1", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 },

	{ .soc_id = "r8a7795", .revision = "ES1.*", .data = &sdhi_quirks_4tap_nohs400_one_rx },

	{ .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_4tap },

	{ .soc_id = "r8a7796", .revision = "ES1.0", .data = &sdhi_quirks_4tap_nohs400_one_rx },

	{ .soc_id = "r8a7796", .revision = "ES1.[12]", .data = &sdhi_quirks_4tap_nohs400 },